EP4090860A1 - Torsional vibration damper with torque limiting clutch - Google Patents
Torsional vibration damper with torque limiting clutchInfo
- Publication number
- EP4090860A1 EP4090860A1 EP21702851.3A EP21702851A EP4090860A1 EP 4090860 A1 EP4090860 A1 EP 4090860A1 EP 21702851 A EP21702851 A EP 21702851A EP 4090860 A1 EP4090860 A1 EP 4090860A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibration damper
- torsional vibration
- output hub
- spring
- centrifugal pendulum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/13142—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by the method of assembly, production or treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/131—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses
- F16F15/139—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon the rotating system comprising two or more gyratory masses characterised by friction-damping means
- F16F15/1397—Overload protection, i.e. means for limiting torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
- F16F15/1407—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers the rotation being limited with respect to the driving means
- F16F15/145—Masses mounted with play with respect to driving means thus enabling free movement over a limited range
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/46—Maintenance
Definitions
- the invention relates to a torsional vibration damper, which is constructed as a two-mass flywheel and comprises a primary part and a secondary part, which are arranged together rotatable about an axis of rotation and rotatable relative to one another and between which a spring damper device is arranged in the torque flow
- the multi-part secondary part includes a torque limiter designed as a slip clutch and whose carrier flange and drive plate are connected via at least one friction lining and the drive plate is coupled to an output hub and a centrifugal pendulum device and the primary part is attached to a crankshaft of an internal combustion engine by means of screws that are fastened through openings in at least one component of the secondary part can be used in bores in the primary part.
- torsional vibration dampers constructed as dual mass flywheels (DMF) are known from the prior art.
- DMF dual mass flywheels
- DE 10 2012 202 255 A1 shows such a torsional vibration damper that can be used for absorption or damping and that can be used in drive trains between the crankshaft of the internal combustion engine and, for example, a shift disconnect clutch upstream of the manual transmission.
- the torsional vibration damper can be combined with a centrifugal pendulum device (CPP), which is preferably assigned to the secondary part and with which the vibration energy is damped by pivoting pendulum masses in opposite directions to the vibrations to be eliminated.
- CPP centrifugal pendulum device
- Such centrifugal pendulum devices are known, for example, from DE 10 2006 028 556 A1 and DE 10 2009 042 836 A1, the several circumferentially distributed on both sides of a carrier flange arranged bifilar over in link or in guideways Enclose guided step bolts movably arranged pendulum masses or pendulum mass packages.
- torsional vibration dampers are often supplemented by a torque limiter (DMB), which in particular protects downstream components of the drive train, for example a transmission, from torque peaks or limits the torque that can be transmitted by the torsional vibration damper.
- DMB torque limiter
- Such a torsional vibration damper is disclosed in DE 102017 119 375 A1. This comprises a primary part which is arranged to be rotatable about an axis of rotation and a secondary part which is arranged so as to be rotatable to a limited extent in relation to this against the action of a spring damper device placed under it in an annular chamber of the primary part. Between a hub part of the secondary part and the spring damper device, a torque limiter is housed in an annular chamber together with the spring damper device.
- DE 102014217 853 A1 shows a rotary vibration damper constructed as a two-mass flywheel, with a primary part that can be rotated about an axis of rotation and a secondary part that is relatively rotatable about the axis of rotation against the action of a spring damper device and a torque limiter connected in series to the spring damper device.
- a centrifugal pendulum device is arranged on the output side, the torque limiter and the centrifugal pendulum device forming structural units placed radially inside the dual-mass flywheel.
- the torque limiters acting as a slip clutch are often provided with an oil bath or otherwise lubricated builds, which require an expensive seal.
- a common structural design of the torsional vibration damper provides that the primary part is screwed on the drive side, the fastening screws being introduced both through openings in the secondary part and through bores in the primary part of the torsional vibration damper. During the initial assembly, the openings are aligned with the bores so that the fastening screws can be inserted unhindered. If the one acting as a slip clutch in the operating state If the torque limiter is activated or triggered due to a set maximum torque being exceeded, a component of the secondary part rotates relative to the primary part of the torsional vibration damper. Associated with this, there is an offset between the openings and the bores, which means that dismantling of the torsional vibration damper is not possible due to the lack of alignment or requires a large amount of installation work.
- the inventive concept provides to offer a torsional vibration damper, in which the output hub of the secondary part is axially guided on a support plate associated with the carrier flange and is positively connected to the drive plate via a toothing. Against the spring force of at least one compression spring, the output hub is axially displaceable and detachable from the toothing and then rotatable to a limited extent. By rotating the output hub relative to the drive plate, a position match can be achieved in which the openings in the output hub are aligned with the bores in the primary part and the corresponding threaded bores in the crankshaft, which are intended for fastening screws of the torsional vibration damper.
- the structural design enables the toothing to be loosened by pulling or axially displacing the output hub against a compression spring force, the tooth profile of which is positively locked in the operating state in the torque-transmitting position a counter-toothing of the drive plate engages.
- the output hub In a position axially removed from the support disk and offset from the toothing, the output hub can be rotated relative to the drive disk up to a position in which a matching position or an identical hole pattern is set between the openings of the output hub and the fastening screws, with which the torsional vibration damper is screwed to the crankshaft.
- the output hub moves itself actively by the compression spring force into the starting position, in which the output hub is toothed in a torque-transmitting position with the drive plate.
- the rotated, changed position of the output hub allows unimpeded access to the fastening screws through the openings in the output hub, which simplifies dismantling and reassembly of the torsional vibration damper.
- the toothing is separated by moving the secondary part from the primary part rigidly attached to the internal combustion engine, for example by pulling on the housing of the centrifugal pendulum device located upstream.
- the invention decisively simplifies dismantling and reassembly of the torsional vibration damper.
- a relative rotation of the output hub with respect to the fastening screws required a high level of installation effort due to a triggered or activated torque limiter or the use of special tools to bring the output hub back into a position that would allow unhindered access to the screws enables.
- the position of the output hub can be matched with the fastening screws by means of a simple measure that does not require any special tools.
- the compression springs which are primarily supported on the driver plate in a circumferentially distributed manner, are respectively enclose a step bolt fixed in position in a housing of the centrifugal pendulum device.
- each step bolt in the drive plate is subject to play in a kidney-shaped curved slot.
- the elongated holes ensure that the step bolt including the compression spring can rotate almost unhindered in the circumferential direction of the torsional vibration damper.
- the length of the elongated holes is chosen so that the secondary side can be rotated until there is an alignment between the openings in the drive hub and the fastening or crankshaft screws.
- the components of the secondary part, the carrier flange and a support disk by means of cranked sections directed axially outwards, delimit an inverted U-shaped, radially downwardly open drying space.
- the dry space formed by the interconnected, preferably riveted components is intended for receiving or guiding components of the torque limiter.
- a preferred embodiment of the torque limiter according to the invention provides that the drive plate is assigned a friction lining on both sides within the drying chamber and a plate spring supported on the drive plate applies force to the friction linings via an intermediate plate. Due to this arrangement, the friction linings are in a protected position, which has a positive effect on the service life of the torque limiter.
- a suitable material for the dry, solvent-free and asbestos-free friction linings is, for example, a sintered material or a friction lining made of organically bound, fiber-reinforced materials.
- a wear-resistant steel material is preferably suitable for the drive plate and the support plate, which are in an operative connection with the dry friction linings.
- the pendulum masses of the centrifugal pendulum device are pivotably mounted on a pendulum flange in a largely closed housing.
- the centrifugal pendulum device thus forms a structural unit that is axially offset from the secondary part of the torsional vibration damper and which, on the one hand, is connected to the carrier via the stepped bolt. merusion and which, on the other hand, is connected to the output hub in a form-fitting manner on the radially inner side, preferably via a toothing.
- the invention offers the possibility of providing the housing of the centrifugal pendulum device with a wall section bent at right angles, which encloses the pendulum masses at a radial distance to form a burst protection.
- the housing of the centrifugal pendulum device can include one or more circumferentially positioned balancing rivets that allow easy balancing of the centrifugal pendulum device and / or the torsional vibration damper.
- a further preferred embodiment of the invention provides for the spring damper device to be integrated in a spring space which is enclosed by the primary part and an associated primary cover, this being sealed radially on the inside by means of a sealing arrangement.
- the two sealing rings of the sealing arrangement are supported on the carrier flange or the support disk of the secondary part, for example, axially pretensioned by means of a plate spring.
- a first sealing ring on the primary part and the further sealing ring on the primary cover of the primary part is arranged in a fixed position.
- the torsional vibration damper which is designed to be easy to dismantle and assemble according to the invention and includes a torque limiter and a centrifugal pendulum device, is preferably suitable for flybridge applications.
- a torsional vibration damper also known as a hybrid module, is integrated in a drive train of a motor vehicle, which is alternatively driven by an internal combustion engine or an electric motor or is driven simultaneously by both drive sources.
- Motor vehicle manufacturers are using torque limiters especially for DHT hybrid applications (dedicated hybrid transmission) required, in particular to protect components within the transmission from overload.
- At least the components of the secondary part such as the carrier flange, the driver disk, the support disk and the output hub and also the individual parts of the housing of the centrifugal pendulum device are designed as a formed part or stamped part.
- a first method step provides to solve a toothing between tween two components of the secondary part by means of an axial displacement.
- the output hub including the associated centrifugal pendulum device is first moved by pulling an axial force directed against a spring force, against a drive plate.
- a subsequent process step provides for the output hub to be rotated into a position in which a position agreement between recesses in the output hub with the fastening screws of the torsional vibration damper is established.
- the drive hub moves automatically in the direction of the drive plate, which means that these components are positively connected in a form-fitting manner, such as the one that is fixed in terms of rotation via the toothing.
- the fastening screws can be loosened by means of a normal tool guided through the recesses of the output hub.
- this output hub position enables the torsional vibration damper to be mounted again.
- FIG. 2 shows a detail Z from FIG. 1 in an enlarged illustration
- FIG. 3 shows a drive plate of the torsional vibration damper shown in FIG. 1 in a perspective
- FIG. 4 shows details of the drive plate according to FIG. 3 in an enlarged form
- Fig. 1 shows an example of a dual-mass flywheel designed as a rotary vibration damper 1 with a primary part 2 and a secondary part 3, which are rotatable together about the axis of rotation 4 and rotatable relative to one another to a limited extent. Between the primary part 2 and the secondary part 3, a spring damper device 5 with mechanical energy stores designed as arc springs 6 is effective.
- the torsional vibration damper 1 intended for a drive train of an internal combustion engine-driven motor vehicle, in particular for a DFIT flybridge application, has the task of damping rotational irregularities in the drive train triggered by the internal combustion engine.
- the primary part 2 comprises a flange element 7, which is connected in one piece radially on the outside with a primary cover 8, which together enclose a spring space 9 intended to receive the Bo genfedern 6.
- the arc springs 6 are supported with one spring end on stops (not shown) of the primary part 2 and with the wide Ren spring end on a carrier flange 10 of the multi-part secondary part 3.
- the primary part 2 of the torsional vibration damper 1 is fastened by means of a plurality of screws 29 to a crankshaft (not shown) of an internal combustion engine, which is inserted into associated bores 30 of the flange element 7 from the pri- märteil 2 are used.
- the secondary part 3 is connected via an output hub 11, for example, to a transmission input shaft (not shown).
- the torsional vibration damper 1 has a torque limiter 12 constructed as a friction device, which is provided in particular to limit components downstream of the torsional vibration damper 1 to an operationally reliable transmissible torque.
- the torque limiter 12 comprises a U-shaped drying space 13 which is open radially in the direction of the axis of rotation 4 and which is axially delimited by a cranked section 14 of the carrier flange 10 and a cranked support disk 15 which are joined together via rivet connections 23.
- the drying space 13 is used to receive a drive plate 16, which is assigned to a dry friction lining 17, 18 on both sides, with a plate spring 19 indirectly supported on the drive plate 16 applying force to the friction linings 17, 18 via an axially displaceable, rotationally fixed intermediate plate 20.
- the spring chamber 9 of the spring damper device 5 which is at least partially filled with a lubricant, is sealed.
- a sealing arrangement consisting of two sealing rings 21, 22 inserted in an axially pretensioned manner is provided.
- the first sealing ring 21 is inserted between tween the primary part 2 and the support disk 15 and the second sealing ring 22 is axially pretensioned between the primary cover 8 and the carrier flange 10 and positioned in a fixed position by means of a plate spring.
- a centrifugal pendulum device 24 positioned axially in front of the secondary part 3 is assigned to the torsional vibration damper 1 as a separate structural unit, which is connected to the slave disk 16 and the output hub 11.
- the centrifugal pendulum device 24 comprises several pendulums which are integrated in a largely closed housing 25 and are pivotably mounted on a pendulum flange (not shown) masses 26.
- a radially outer, angled wall section 27 of the housing 25 forms a burst protection for the pendulum masses 26.
- the housing 25 includes at least one balancing rivet 28, which enables a simplified balancing of the rotary vibration damper 1.
- components of the secondary part 3 can be detached, so that the output hub 11 can be adjusted to a limited extent with respect to the primary part 2.
- the driven hub 11 guided on the support disk 15 can be axially displaced together with the centrifugal force pendulum device 24 in the direction of the arrow against the direction of force of a compression spring 34, whereby a toothing 31 between the drive hub 11 and the drive plate 16 is released.
- FIG. 2 clarifies in an enlarged representation of the detail Z according to FIG.
- a plurality of stepped bolts 32 are fixed in position in the housing 25 of the centrifugal pendulum device 24, each of which engages in an elongated hole 33 of the drive plate 16.
- compression springs 34 distributed around the circumference, are supported on the drive plate 16, each of which surrounds a stepped bolt 32 guided through an elongated hole 33 and at the same time is fixed to an end disk 35 of the stepped bolt 32.
- the slots 33 allow a rotation of the Stu fenbolzen 32 including associated compression springs 34 up to a position agreement of openings 36 of the output hub 11 with holes 30 in the primary part
- the length of the elongated holes 33 is designed so that the drive hub 11 can be rotated unhindered so far that an alignment between the openings 36 in the output hub 11 and the screws 29 is established, whereby the screws 29 for the purpose of dismantling the torsional vibration damper 1 without a special les Tool are detachable.
- the drive hub 11 is automatically moved into the starting position by the compression springs 34, ie into the toothing 31 with the drive plate 16. Due to the adjusted, changed positioning of the drive hub 11 opposite A simplified assembly of the rotary vibration damper 1 can also be carried out via the drive plate 16.
- FIG. 3 and 4 show in particular the position and size of the elongated holes 33 in the driver plate 16 intended for receiving and guiding the stepped bolts 32.
- Each elongated hole 33 is introduced into a locally axially projecting tab 37 of the driver disk 16.
- the drive plate 16 includes three elongated holes 33 offset by 120 ° to one another and each extending in a kidney-shaped curve.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020100507.5A DE102020100507A1 (en) | 2020-01-13 | 2020-01-13 | Torsional vibration damper with torque limiter |
PCT/DE2021/100012 WO2021143976A1 (en) | 2020-01-13 | 2021-01-11 | Torsional vibration damper with torque limiting clutch |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4090860A1 true EP4090860A1 (en) | 2022-11-23 |
Family
ID=74504981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21702851.3A Withdrawn EP4090860A1 (en) | 2020-01-13 | 2021-01-11 | Torsional vibration damper with torque limiting clutch |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4090860A1 (en) |
CN (1) | CN114761704B (en) |
DE (1) | DE102020100507A1 (en) |
WO (1) | WO2021143976A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021119148A1 (en) * | 2021-07-23 | 2023-01-26 | Schaeffler Technologies AG & Co. KG | Torsional vibration damper with handling intervention |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN189877B (en) * | 1997-08-04 | 2003-05-03 | Luk Lamellen & Kupplungsbau | |
IT1317624B1 (en) * | 1999-03-16 | 2003-07-15 | Luk Lamellen & Kupplungsbau | DEVICE FOR THE TRANSMISSION OF A TORQUE, IN PARTICULAR A THERMAL ENGINE WITH A GEARBOX PLACED DOWNstream IN A VEHICLE. |
ATE415572T1 (en) * | 2004-09-03 | 2008-12-15 | Luk Lamellen & Kupplungsbau | TORQUE TRANSMISSION DEVICE |
DE102006028556B4 (en) | 2005-07-11 | 2019-10-10 | Schaeffler Technologies AG & Co. KG | Torque transfer device |
DE102009042836A1 (en) | 2008-11-24 | 2010-05-27 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Centrifugal force pendulum for torque transmission device, has rolling body assigned to career shifts, and connecting element arranged between careers of pendulum masses along circumferential direction |
DE112010004911B4 (en) * | 2009-12-21 | 2020-06-10 | Schaeffler Technologies AG & Co. KG | Dual mass flywheel and clutch |
US8991578B2 (en) * | 2009-12-25 | 2015-03-31 | Exedy Corporation | Clutch device |
DE102012202255A1 (en) | 2011-02-23 | 2012-08-23 | Schaeffler Technologies AG & Co. KG | Torsional vibration damper for dual mass flywheel, particularly for drive train of combustion engine driven motor vehicle, comprises inlet part, outlet part with flange portion and hub portion |
CN202251493U (en) * | 2011-09-28 | 2012-05-30 | 洛阳精联机械基础件有限公司 | Locking connection flange |
DE102012218921A1 (en) * | 2012-10-17 | 2014-04-17 | Zf Friedrichshafen Ag | Torsional vibration damping arrangement |
EP3052827B1 (en) * | 2013-10-04 | 2017-11-29 | Schaeffler Technologies GmbH & Co. KG | Pulse-separation clutch arrangement |
DE102014217853A1 (en) | 2014-09-08 | 2016-03-10 | Schaeffler Technologies AG & Co. KG | Dual mass flywheel with torque limiter and centrifugal pendulum |
DE102016204261B4 (en) * | 2016-03-15 | 2019-10-17 | Schaeffler Technologies AG & Co. KG | Dual-mass flywheel with torque limiter and a rotatable bearing flange |
DE102016207708A1 (en) * | 2016-05-04 | 2017-11-09 | Schaeffler Technologies AG & Co. KG | torsional vibration damper |
DE102016010482A1 (en) * | 2016-08-31 | 2018-03-01 | Borgwarner Inc. | Drehmomentübertragunasvorrichtung for the powertrain of a motor vehicle and drive train with such a torque transmission device |
DE102016221579A1 (en) * | 2016-11-03 | 2018-05-03 | Schaeffler Technologies AG & Co. KG | Centrifugal pendulum and torque converter with centrifugal pendulum |
DE112018002514A5 (en) * | 2017-05-17 | 2020-04-09 | Schaeffler Technologies AG & Co. KG | Coverless dual mass flywheel with a centrifugal pendulum |
DE102017119375B4 (en) | 2017-08-24 | 2024-03-21 | Schaeffler Technologies AG & Co. KG | Torsional vibration damper |
FR3073784B1 (en) * | 2017-11-22 | 2020-08-28 | Valeo Embrayages | HYBRID VEHICLE TRANSMISSION DEVICE |
DE102018119505A1 (en) * | 2018-06-08 | 2019-12-12 | Schaeffler Technologies AG & Co. KG | Torque limiter for a torsional vibration damper |
CN108749482B (en) * | 2018-06-12 | 2024-02-20 | 杭州程天科技发展有限公司 | Mecanum wheel, chassis and assisting robot |
CN208519402U (en) * | 2018-06-25 | 2019-02-19 | 福清市永春混凝土外加剂有限公司 | A kind of chemical industry equipment feeder |
-
2020
- 2020-01-13 DE DE102020100507.5A patent/DE102020100507A1/en active Pending
-
2021
- 2021-01-11 WO PCT/DE2021/100012 patent/WO2021143976A1/en unknown
- 2021-01-11 EP EP21702851.3A patent/EP4090860A1/en not_active Withdrawn
- 2021-01-11 CN CN202180006917.0A patent/CN114761704B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN114761704A (en) | 2022-07-15 |
DE102020100507A1 (en) | 2021-07-15 |
CN114761704B (en) | 2024-10-01 |
WO2021143976A1 (en) | 2021-07-22 |
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